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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF) about nanotechnology making its way into everyday products, such as sunscreen, and how effective these invisible particles may be vs. their old...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    Twin Cities Public Television
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    This activity (on page 3 of the PDF) is a full inquiry investigation into conductivity. Learners will harness the surprising electricity of fruit when they create a battery out of a lemon stuck...

    $5 - $10 per student Ages 8 - 14 1 to 2 hours
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    The Exploratorium
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    In this activity, learners build a recording timer made from simple materials (e.g., small dc motor, sharpie pen, craft sticks, adding machine paper tape, etc.). The device produces a record of...

    Over $20 per group Ages 14 - 18 1 to 2 hours
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    Oregon Museum of Science and Industry
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    This is a series of demonstrations about different electrical and magnetic phenomena. Some require highly specialized equipment like a Wimshurst machine, while others involve very simple equipment...

    Over $20 per group Ages 11 - 18 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    In this activity, learners electrically plate zinc onto brass objects. They connect a brass object to a black wire on the negative pole of a 6 Volt battery, and a piece of zinc to a red wire on the...

    1 cent - $1 per group Ages 11 - adult Under 5 minutes